Indoor vacuum circuit breaker

type VZG-12 sealed terminal indoor high votage vacuum circuit breaker

Product Overview

This circuit breaker is a kind of indoor high-voltage switchgear under three-phase AC 50Hz, 12KV rated voltage. It can be used as the electrical protective and control device in the power supply and distribution system and industrial and mining enterprises. With reliable interlocking characteristics, the circuit breaker can be frequently operated under rated current, it has the capability to break current for multiple times. The operating mechanism integrates with arc extinguish chamber, it can be operated as a fixed unit, and also can be used as independent hand cart by assembling with chassis.

Technical Characteristics

Our Type VZG sealed-terminal indoor high-voltage vacuum circuit breaker adopts APG processing technical, which realizes perfect integration with epoxy resin and arc distinguishing chamber. The primary conductive part is sealed to effectively prevent the insulation from ambient severe environment such as moisture, dirt and condensate etc.

Compared with traditional assembly circuit breaker, our product reduces the oxidation of conductive part, lower the loop resistance, it effectively improves the reliability of main loop connection, avoids the unnecessary temperature rise, and prolongs the service life. The seal-terminal placing provides sufficient mechanical protection for vacuum arc extinguish chamber, moreover, it can withstand the mechanical shock during delivery which assure the stability and consistency of mechanical performance. Meanwhile, our product increases its insulating strength after receiving sealed treatment, which makes the possible to minimize the size and can replace the SF6 in the certain extent.

From the aforementioned, our Type VZG vacuum circuit breaker boasts of the characteristics of high reliability, high insulativity, excellent mechanical performance, compact size, maintenance free and environmental friendly. We keep working to follow the major development trend in the market and make efforts to our products to fulfill customers’ needs.

Main Technical Parameters